Topic selection
We prioritize questions that affect real buying decisions, such as quantity, waste, coverage, prep, and product-selection tradeoffs. We do not publish large batches of low-value pages just to cover minor keyword variations.
Editorial Policy
How we create guides and calculators.
Each guide is written for a real project question, not for keyword volume alone. We include formulas, assumptions, examples, and limitations so readers can decide whether an estimate fits their room, product, or project conditions.
How formulas are reviewed
Calculator logic and guide formulas are checked against the assumptions stated on the page. When a manufacturer label, packaging unit, or common U.S. project convention changes how a page should be read, we update the guide and the calculator together when possible.
- Show the formula whenever a calculation is central to the page.
- State default assumptions where readers can see them.
- Prefer conservative planning numbers when rounding affects a purchase.
Updates and corrections
We revise pages when a clearer example is needed, when a limitation is missing, or when a reader reports a mismatch between the published assumption and a real project condition.
Material changes should be reflected in the page updated date so readers can see when guidance was last reviewed.
Advertising and editorial separation
Advertising does not decide which guides are published or how calculator assumptions are described. Sponsored placements, if any are added later, should be clearly labeled and should not change the substance of editorial recommendations.